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2606.10960 2026-06-10 hep-ex 新提交

Understanding Energy Dependent Hadronic Calorimeter Response from a Machine Learning Perspective

从机器学习角度理解强子量能器的能量依赖响应

Shuai-Chun Wang, Huang-Ran Shen, Wan-Bing He, Wei-Hu Ma, Peng-Jie Li, De-Qing Fang, Yu-Gang Ma

AI总结 利用机器学习系统研究强子能量重建,结合闪烁光、切伦科夫光、带电粒子和三维簇射拓扑,在10 GeV以下将能量分辨率从(57.6±3.7)%/√E提升至(34.1±2.8)%/√E。

Comments 28 pages, 20 Figures

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AI中文摘要

为满足未来高能物理实验的精度要求,提高强子量能器的能量分辨率仍是一个关键挑战。本文利用机器学习对强子能量重建进行了系统研究,突出了各种信号通道的作用,包括闪烁光、切伦科夫光、带电粒子以及高达10 GeV能量范围内强子簇射的完整三维拓扑。在整个研究中,未考虑探测器效应。在此条件下,当充分利用所有信号通道和完整的三维簇射信息时,强子簇射的本征分辨率达到约$(10.8\pm0.3)\\% / \sqrt{E/\mathrm{GeV}}$。与传统信号求和方式相比,即使在10%的有限采样分数下,基于机器学习的重建也能显著提高能量分辨率,从$(57.6\pm3.7)\\%/\sqrt{E/\mathrm{GeV}}$提升至$(34.1\pm2.8)\\%/\sqrt{E/\mathrm{GeV}}$。这些结果突显了多通道信息和详细空间簇射特征在强子能量重建中的关键重要性,并展示了将高颗粒度和双读出量能器设计与基于机器学习的重建技术相结合对未来实验的巨大潜力。

英文摘要

To meet the precision requirements of future high-energy physics experiments, improving the energy resolution of hadronic calorimeters remains a critical challenge. This work presents a systematic investigation of hadronic energy reconstruction using machine learning, highlighting the roles of various signal channels, including scintillation light, Cherenkov light, charged particles, and the full three-dimensional topology of hadronic showers in the energy range up to 10 GeV. Throughout this study, detector effects are not taken into account. Under these conditions, the intrinsic resolution of hadronic showers reaches approximately $(10.8\pm0.3)\% / \sqrt{E/GeV}$ when all signal channels and the full 3D shower information are fully utilized. Compared with the traditional signal-summing approach, machine-learning-based reconstruction can significantly improve energy resolution, even under a limited sampling fraction of 10\%, enhancing it from $(57.6\pm3.7)\%/\sqrt{E/GeV}$ to $(34.1\pm2.8)\%/\sqrt{E/GeV}$. These results highlight the critical importance of both multi-channel information and detailed spatial shower features in hadronic energy reconstruction, and demonstrate the substantial potential of combining high-granularity and dual-readout calorimeter designs with machine-learning-based reconstruction techniques for future experiments.

2606.10668 2026-06-10 hep-ex hep-ph nucl-ex nucl-th 新提交

$Λ$(1520) as a probe of resonance-driven deuteron formation at the LHC

$\Lambda(1520)$ 作为 LHC 共振驱动氘核形成的探针

Sushanta Tripathy, Peter Christiansen

AI总结 提出利用长寿命共振 $\Lambda(1520) \to {\rm pK}$ 的衰变质子与氘核并合产生的关联,通过代理质量 $M_{\rm (d/2)K}$ 重建共振峰,区分并合与统计热模型对轻核产生的解释。

Comments 5 pages and 4 captioned figures

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AI中文摘要

轻核如氘核在高能质子-质子和核碰撞中大量产生,尽管其结合能极小。其产生机制仍未解决,因为核子并合和统计热模型都能再现 LHC 的包容产额。我们提出一个直接的不变质量观测量,利用长寿命 $\Lambda(1520) \to {\rm pK}$ 共振来区分这些情景。如果衰变质子并合成氘核,产生的核子与 kaon 保持关联,从而可以通过代理质量 $M_{\rm (d/2)K}$(由 kaon 和一半氘核四动量构成)在实验上重建共振峰。利用 Thermal-FIST 和带有氘核并合后处理的 PYTHIA,我们证明 $M_{\rm (d/2)K}$ 峰仅在并合情景中出现。该观测量为高能碰撞中共振馈入的氘核产生和后期并合动力学提供了直接的实验探针。

英文摘要

Light nuclei such as deuterons are produced abundantly in high-energy proton-proton and nuclear collisions despite their tiny binding energies. Their production mechanism remains unresolved, as both nucleon coalescence and statistical thermal models reproduce inclusive LHC yields. We propose a direct invariant-mass observable that discriminates between these scenarios using the long-lived $Λ(1520) \to {\rm pK}$ resonance. If decay protons coalesce into deuterons, the produced nuclei remain correlated with the kaon, allowing the resonance peak to be reconstructed experimentally through proxy masses, $M_{\rm (d/2)K}$, formed from kaons and half the deuteron four-momentum. Using Thermal-FIST and PYTHIA with a deuteron coalescence afterburner, we show that a $M_{\rm (d/2)K}$ peak emerges only in the coalescence scenario. This observable provides a direct experimental probe of resonance-fed deuteron production and of late-stage coalescence dynamics in high-energy collisions.

2606.10637 2026-06-10 hep-ex 新提交

A Multimodal Domain-Adversarial Network for Fragmentation Background Suppression in AMS Heavy Nuclei Measurements

用于AMS重核测量中碎裂本底抑制的多模态域对抗网络

Zhen Liu, Valerio Formato, Muhammad Waqas

AI总结 针对AMS重核测量中碎裂本底问题,提出多模态域对抗网络,融合硅径迹仪和飞行时间探测器数据,通过域对抗训练实现模拟到飞行数据的迁移,有效抑制本底。

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AI中文摘要

国际空间站上的阿尔法磁谱仪(AMS)提供了从电荷Z=1到Z=28及更重宇宙射线核通量的高精度测量。在非相互作用核的电荷混淆可忽略的情况下,核通量测量的精度主要受限于来自更重宇宙射线在探测器材料内相互作用产生的碎裂本底,特别是在径迹仪第1层和第2层(L1-L2)之间。随着AMS将测量扩展到更重和更稀有的核,这些碎裂本底变得越来越占主导地位,需要先进的背景抑制方法。为了应对这一挑战,我们引入了一种多模态域对抗(MDA)神经网络,旨在有效抑制这些相互作用本底。MDA模型通过专用子网络结合多头注意力,融合来自硅径迹仪和飞行时间探测器的异构数据。关键在于,采用域对抗训练策略来学习不变表示,使得在蒙特卡罗模拟上训练的模型能够可靠地应用于飞行数据。以磷(P)为基准,我们展示了其背景抑制能力。该方法提供了一个鲁棒且可推广的框架,适用于AMS测量其他稀有宇宙射线核。

英文摘要

The Alpha Magnetic Spectrometer (AMS) aboard the International Space Station provides high-precision measurements of cosmic-ray nuclei fluxes from charge Z=1 to Z=28 and beyond. With negligible charge confusion from non-interacting nuclei, the precision of nuclei flux measurements is primarily limited by fragmentation backgrounds originating from heavier cosmic rays interacting within detector materials, particularly between tracker Layers 1 and 2 (L1-L2). As AMS extends its measurements to heavier and rarer nuclei, these fragmentation backgrounds become increasingly dominant, necessitating advanced background suppression methods. To address this challenge, we introduce a Multimodal Domain-Adversarial (MDA) neural network designed to effectively suppress these interaction backgrounds. The MDA model fuses heterogeneous data from the silicon tracker and time-of-flight detectors using specialized sub-networks combined via multi-head attention. Crucially, a domain-adversarial training strategy is employed to learn invariant representations, enabling the model, which is trained on Monte Carlo simulations, to be reliably applied to flight data. Using phosphorus (P) as a benchmark, we demonstrate its background suppression capabilities. This approach provides a robust, generalizable framework applicable to the measurement of other rare cosmic-ray nuclei with AMS.

2606.10274 2026-06-10 hep-ex 新提交

Measurement of the branching fraction of $D_{s}^{*+}\to e^{+}e^{-}D_{s}^{+}$

$D_{s}^{*+}\to e^{+}e^{-}D_{s}^{+}$ 分支比的测量

BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, Q. An, Y. Bai, O. Bakina, Y. Ban, H. -R. Bao, X. L. Bao, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. B. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, M. H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, X. Y. Chai, J. F. Chang, T. T. Chang, G. R. Che, Y. Z. Che, C. H. Chen, Chao Chen, G. Chen, H. S. Chen, H. Y. Chen, M. L. Chen, S. J. Chen, S. M. Chen, T. Chen, W. Chen, X. R. Chen, X. T. Chen, X. Y. Chen, Y. B. Chen, Y. Q. Chen, Z. K. Chen, J. Cheng, L. N. Cheng, S. K. Choi, X. Chu, G. Cibinetto, F. Cossio, J. Cottee-Meldrum, H. L. Dai, J. P. Dai, X. C. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, C. Q. Deng, Z. Y. Deng, A. Denig, I. Denisenko, M. Destefanis, F. De Mori, X. X. Ding, Y. Ding, Y. X. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, S. X. Du, X. L. Du, Y. Y. Duan, Z. H. Duan, P. Egorov, G. F. Fan, J. J. Fan, Y. H. Fan, J. Fang, J. Fang, S. S. Fang, W. X. Fang, Y. Q. Fang, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, L. Feng, Q. X. Feng, Y. T. Feng, M. Fritsch, C. D. Fu, J. L. Fu, Y. W. Fu, H. Gao, Y. Gao, Y. N. Gao, Y. N. Gao, Y. Y. Gao, Z. Gao, S. Garbolino, I. Garzia, L. Ge, P. T. Ge, Z. W. Ge, C. Geng, E. M. Gersabeck, A. Gilman, K. Goetzen, J. D. Gong, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. D. Gu, M. H. Gu, C. Y. Guan, A. Q. Guo, J. N. Guo, L. B. Guo, M. J. Guo, R. P. Guo, X. Guo, Y. P. Guo, A. Guskov, J. Gutierrez, T. T. Han, F. Hanisch, K. D. Hao, X. Q. Hao, F. A. Harris, C. Z. He, K. L. He, F. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, P. C. Hong, G. Y. Hou, X. T. Hou, Y. R. Hou, Z. L. Hou, H. M. Hu, J. F. Hu, Q. P. Hu, S. L. Hu, T. Hu, Y. Hu, Z. M. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, P. Huang, X. T. Huang, Y. P. Huang, Y. S. Huang, T. Hussain, N. Hüsken, N. in der Wiesche, J. Jackson, Q. Ji, Q. P. Ji, W. Ji, X. B. Ji, X. L. Ji, X. Q. Jia, Z. K. Jia, D. Jiang, H. B. Jiang, P. C. Jiang, S. J. Jiang, X. S. Jiang, J. B. Jiao, J. K. Jiao, Z. Jiao, L. C. L. Jin, S. Jin, Y. Jin, M. Q. Jing, X. M. Jing, T. Johansson, S. Kabana, X. L. Kang, X. S. Kang, B. C. Ke, V. Khachatryan, A. Khoukaz, O. B. Kolcu, B. Kopf, L. Kröger, M. Kuessner, X. Kui, N. Kumar, A. Kupsc, W. Kühn, Q. Lan, W. N. Lan, T. T. Lei, M. Lellmann, T. Lenz, C. Li, C. Li, C. H. Li, C. K. Li, D. M. Li, F. Li, G. Li, H. B. Li, H. J. Li, H. L. Li, H. N. Li, Hui Li, J. R. Li, J. S. Li, J. W. Li, K. Li, K. L. Li, L. J. Li, Lei Li, M. H. Li, M. R. Li, P. L. Li, P. R. Li, Q. M. Li, Q. X. Li, R. Li, S. X. Li, Shanshan Li, T. Li, T. Y. Li, W. D. Li, W. G. Li, X. Li, X. H. Li, X. K. Li, X. L. Li, X. Y. Li, X. Z. Li, Y. Li, Y. G. Li, Y. P. Li, Z. H. Li, Z. J. Li, Z. X. Li, Z. Y. Li, C. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. B. Liao, M. H. Liao, Y. P. Liao, J. Libby, A. Limphirat, D. X. Lin, L. Q. Lin, T. Lin, B. J. Liu, B. X. Liu, C. X. Liu, F. Liu, F. H. Liu, Feng Liu, G. M. Liu, H. Liu, H. B. Liu, H. M. Liu, Huihui Liu, J. B. Liu, J. J. Liu, K. Liu, K. Liu, K. Y. Liu, Ke Liu, L. Liu, L. C. Liu, Lu Liu, M. H. Liu, P. L. Liu, Q. Liu, S. B. Liu, W. M. Liu, W. T. Liu, X. Liu, X. K. Liu, X. L. Liu, X. Y. Liu, Y. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Z. D. Liu, Z. Q. Liu, Z. Y. Liu, X. C. Lou, H. J. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. H. Lu, Y. P. Lu, Z. H. Lu, C. L. Luo, J. R. Luo, J. S. Luo, M. X. Luo, T. Luo, X. L. Luo, Z. Y. Lv, X. R. Lyu, Y. F. Lyu, Y. H. Lyu, F. C. Ma, H. L. Ma, Heng Ma, J. L. Ma, L. L. Ma, L. R. Ma, Q. M. Ma, R. Q. Ma, R. Y. Ma, T. Ma, X. T. Ma, X. Y. Ma, Y. M. Ma, F. E. Maas, I. MacKay, M. Maggiora, S. Malde, Q. A. Malik, H. X. Mao, Y. J. Mao, Z. P. Mao, S. Marcello, A. Marshall, F. M. Melendi, Y. H. Meng, Z. X. Meng, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, B. Moses, N. Yu. Muchnoi, J. Muskalla, Y. Nefedov, F. Nerling, H. Neuwirth, Z. Ning, S. Nisar, Q. L. Niu, W. D. Niu, Y. Niu, C. Normand, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, Y. P. Pei, M. Pelizaeus, H. P. Peng, X. J. Peng, Y. Y. Peng, K. Peters, K. Petridis, J. L. Ping, R. G. Ping, S. Plura, V. Prasad, F. Z. Qi, H. R. Qi, M. Qi, S. Qian, W. B. Qian, C. F. Qiao, J. H. Qiao, J. J. Qin, J. L. Qin, L. Q. Qin, L. Y. Qin, P. B. Qin, X. P. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, Z. H. Qu, J. Rademacker, C. F. Redmer, A. Rivetti, M. Rolo, G. Rong, S. S. Rong, F. Rosini, Ch. Rosner, M. Q. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, W. Shan, X. Y. Shan, Z. J. Shang, J. F. Shangguan, L. G. Shao, M. Shao, C. P. Shen, H. F. Shen, W. H. Shen, X. Y. Shen, B. A. Shi, H. Shi, J. L. Shi, J. Y. Shi, S. Y. Shi, X. Shi, H. L. Song, J. J. Song, M. H. Song, T. Z. Song, W. M. Song, Y. X. Song, Zirong Song, S. Sosio, S. Spataro, S. Stansilaus, F. Stieler, S. S Su, G. B. Sun, G. X. Sun, H. Sun, H. K. Sun, J. F. Sun, K. Sun, L. Sun, R. Sun, S. S. Sun, T. Sun, W. Y. Sun, Y. C. Sun, Y. H. Sun, Y. J. Sun, Y. Z. Sun, Z. Q. Sun, Z. T. Sun, C. J. Tang, G. Y. Tang, J. Tang, J. J. Tang, L. F. Tang, Y. A. Tang, L. Y. Tao, M. Tat, J. X. Teng, J. Y. Tian, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, B. Wang, B. Wang, Bo Wang, C. Wang, C. Wang, Cong Wang, D. Y. Wang, H. J. Wang, H. R. Wang, J. Wang, J. J. Wang, J. P. Wang, K. Wang, L. L. Wang, L. W. Wang, M. Wang, M. Wang, N. Y. Wang, S. Wang, Shun Wang, T. Wang, T. J. Wang, W. Wang, W. P. Wang, X. Wang, X. F. Wang, X. L. Wang, X. N. Wang, Xin Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. H. Wang, Y. J. Wang, Y. L. Wang, Y. N. Wang, Y. N. Wang, Yaqian Wang, Yi Wang, Yuan Wang, Z. Wang, Z. Wang, Z. L. Wang, Z. Q. Wang, Z. Y. Wang, Ziyi Wang, D. Wei, D. H. Wei, H. R. Wei, F. Weidner, S. P. Wen, U. Wiedner, G. Wilkinson, M. Wolke, J. F. Wu, L. H. Wu, L. J. Wu, Lianjie Wu, S. G. Wu, S. M. Wu, X. W. Wu, Y. J. Wu, Z. Wu, L. Xia, B. H. Xiang, D. Xiao, G. Y. Xiao, H. Xiao, Y. L. Xiao, Z. J. Xiao, C. Xie, K. J. Xie, Y. Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. J. Xu, G. F. Xu, H. Y. Xu, M. Xu, Q. J. Xu, Q. N. Xu, T. D. Xu, X. P. Xu, Y. Xu, Y. C. Xu, Z. S. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, W. H. Yan, W. P. Yan, X. Q. Yan, Y. Y. Yan, H. J. Yang, H. L. Yang, H. X. Yang, J. H. Yang, R. J. Yang, Y. Yang, Y. H. Yang, Y. Q. Yang, Y. Z. Yang, Z. P. Yao, M. Ye, M. H. Ye, Z. J. Ye, Junhao Yin, Z. Y. You, B. X. Yu, C. X. Yu, G. Yu, J. S. Yu, L. W. Yu, T. Yu, X. D. Yu, Y. C. Yu, Y. C. Yu, C. Z. Yuan, H. Yuan, J. Yuan, J. Yuan, L. Yuan, M. K. Yuan, S. H. Yuan, Y. Yuan, C. X. Yue, Ying Yue, A. A. Zafar, F. R. Zeng, S. H. Zeng, X. Zeng, Y. J. Zeng, Y. J. Zeng, Y. C. Zhai, Y. H. Zhan, S. N. Zhang, B. L. Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, G. Y. Zhang, H. Zhang, H. Zhang, H. C. Zhang, H. H. Zhang, H. Q. Zhang, H. R. Zhang, H. Y. Zhang, J. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. S. Zhang, J. W. Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, Jianyu Zhang, L. M. Zhang, Lei Zhang, N. Zhang, P. Zhang, Q. Zhang, Q. Y. Zhang, R. Y. Zhang, S. H. Zhang, Shulei Zhang, X. M. Zhang, X. Y. Zhang, Y. Zhang, Y. Zhang, Y. T. Zhang, Y. H. Zhang, Y. P. Zhang, Z. D. Zhang, Z. H. Zhang, Z. L. Zhang, Z. L. Zhang, Z. X. Zhang, Z. Y. Zhang, Z. Y. Zhang, Z. Y. Zhang, Zh. Zh. Zhang, G. Zhao, J. Y. Zhao, J. Z. Zhao, L. Zhao, L. Zhao, M. G. Zhao, S. J. Zhao, Y. B. Zhao, Y. L. Zhao, Y. P. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, B. M. Zheng, J. P. Zheng, W. J. Zheng, X. R. Zheng, Y. H. Zheng, B. Zhong, C. Zhong, H. Zhou, J. Q. Zhou, S. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. X. Zhou, Y. Z. Zhou, A. N. Zhu, J. Zhu, K. Zhu, K. J. Zhu, K. S. Zhu, L. X. Zhu, Lin Zhu, S. H. Zhu, T. J. Zhu, W. D. Zhu, W. J. Zhu, W. Z. Zhu, Y. C. Zhu, Z. A. Zhu, X. Y. Zhuang, J. H. Zou

AI总结 利用BESIII实验在7.33 fb⁻¹的e⁺e⁻对撞数据中,测量了电磁Dalitz衰变D_s*+→e⁺e⁻D_s+的分支比,结果为(7.28±0.61±0.31)×10⁻³,精度提高2.5倍,为理论模型约束和绝对分支比测量提供了重要输入。

Comments 12 pages, 3 figures

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AI中文摘要

利用BESIII实验在质心能量4.128至4.226 GeV、总积分亮度7.33 fb⁻¹的$e^{+}e^{-}$对撞数据样本,测量了电磁Dalitz衰变$D^{*+}_{s}\to e^{+}e^{-}D^{+}_{s}$的分支比。测量得到分支比${\mathcal{B}(D^{*+}_{s}\to e^{+}e^{-}D^{+}_{s})=(7.28\pm0.61_{\mathrm{stat}}\pm0.31_{\mathrm{syst}})\times10^{-3}}$。结果与之前一致,精度提高了2.5倍。这为约束理论模型参数以及通过相对方法测量$D^{*+}_{s}\to \pi^{0}D^{+}_{s}$和$D^{*+}_{s}\to \gamma D^{+}_{s}$的绝对分支比提供了重要输入。

英文摘要

The branching fraction of the electromagnetic Dalitz decay $D^{*+}_{s}\to e^{+}e^{-}D^{+}_{s}$ is measured with an $e^{+}e^{-}$ collision data sample collected by the BESIII experiment at center-of-mass energies between 4.128 and 4.226 $\mathrm{GeV}$, corresponding to a total integrated luminosity of 7.33 $\mathrm{fb}^{-1}$. The measurement yields the branching fraction ${\mathcal{B}(D^{*+}_{s}\to e^{+}e^{-}D^{+}_{s})=(7.28\pm0.61_{\mathrm{stat}}\pm0.31_{\mathrm{syst}})\times10^{-3}}$. The result is consistent with the previous one, with a 2.5-fold improvement in precision. This provides an important input for constraining the parameters of theoretical models and for determining the absolute branching fractions of $D^{*+}_{s}\to π^{0}D^{+}_{s}$ and $D^{*+}_{s}\to γD^{+}_{s}$, measured with a relative method.

2606.10234 2026-06-10 hep-ex physics.ins-det 新提交

Performance of the Eos detector with water

Eos探测器在水中的性能

Eos Collaboration, S. Arora, M. Askins, A. J. Bacon, Z. Bagdasarian, A. Baldoni, L. Bartoszek, M. Bergevin, Y. Bezawada, E. Blucher, J. Boissevain, R. Bonventre, E. J. Callaghan, D. F. Cowen, K. DeHolton, M. Diwan, M. Dubnowski, P. Englezos, S. Gadamsetty, C. Grant, B. Harris, M. R. Hebert, S. Jeon, T. Kaptanoglu, A. Katt, J. R. Klein, T. Kroupova, L. Lebanowski, S. Lynch, A. Mastbaum, C. Mauger, G. Mayers, M. Miller, J. Nachtman, S. Naugle, J. Newby, M. Newcomer, A. Nikolica, G. D. Orebi Gann, A. Phipps, L. Pickard, R. C. Pitelka, L. Ren, A. Rincon, R. Rosero, N. Rowe, H. J. Ryoo, J. Ryshkewitch, J. Saba, S. Schoppmann, J. Shen, M. Smiley, H. Song, H. Steiger, B. Tam, E. Tiras, W. H. To, M. R. Vagins, R. Van Berg, J. Wallig, G. Wendel, M. Wetstein, M. Wurm, G. Yang, M. Yeh, E. D. Zimmerman, A. Zummo

AI总结 本文展示了Eos探测器(四吨光学探测器)在水中的首次结果,通过校准和模拟验证了基于闪烁体的混合探测器技术用于未来中微子探测器的性能。

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AI中文摘要

在这篇手稿中,我们展示了Eos探测器的首次结果,Eos是一个位于加州大学伯克利分校的四吨光学探测器。其主要目标是展示基于闪烁体的“混合”探测器技术在未来中微子探测器中的性能能力。所呈现的数据是在内靶容器和外缓冲容器均充满水时收集的。水靶作为一种易于理解的介质,仅产生切伦科夫光,可用于在部署闪烁材料之前校准和开发探测器模型及重建算法。通过使用部署的光学和放射性校准源,进行了一系列详细的探测器校准。这些校准使得能够对各种重建算法进行一系列测试。使用校准模型的模拟与不同校准源类型、源位置和旋转的实验数据进行了比较。

英文摘要

In this manuscript we present the first results from Eos, a four tonne optical detector located at the University of California, Berkeley. The primary goal of Eos is to demonstrate the performance capabilities of scintillation-based, 'hybrid' detector technology for future neutrino detectors. The data presented were collected while both the inner target vessel and the outer buffer vessel were filled with water. The water target acts as a well-understood medium that produces only Cherenkov light, which can be used to calibrate and develop the detector model and reconstruction algorithms prior to the deployment of scintillating material. Using deployed optical and radioactive calibration sources, a series of detailed detector calibrations are performed. These enable a suite of tests for various reconstruction algorithms. Simulations that use calibrated models are compared with the data across a variety of different types of calibration sources, source positions, and rotations.

2606.09986 2026-06-10 hep-ex hep-ph 新提交

Testing Heavy Dark Matter Decay as the Origin of KM3-230213A

测试重暗物质衰变作为KM3-230213A事件的起源

KM3NeT Collaboration, O. Adriani, J. A. Aguilar, A. Albert, A. R. Alhebsi, S. Alshalloudi, F. Ameli, M. Andre, L. Aphecetche, M. Ardid, S. Ardid, J. Aublin, F. Badaracco, B. Baret, A. Bariego-Quintana, L. Barigione, M. Barnard, Y. Becherini, M. Bendahman, F. Benfenati Gualandi, M. Benhassi, D. M. Benoit, Z. Beňušová, E. Berbee, C. van Bergen, E. Berti, V. Bertin, P. Betti, S. Biagi, M. Boettcher, D. Bonanno, M. Bondì, M. Bongi, S. Bottai, J. Boumaaza, M. Bouta, C. Bozza, R. M. Bozza, F. Bretaudeau, M. Breuhaus, R. Bruijn, J. Brunner, R. Bruno, E. Buis, R. Buompane, B. Caiffi, D. Calvo, E. G. J. van Campenhout, A. Capone, F. Carenini, V. Carretero, T. Cartraud, P. Castaldi, V. Cecchini, S. Celli, M. Chabab, A. Chen, S. Cherubini, M. Chianese, T. Chiarusi, W. Chung, M. Circella, R. Clark, R. Cocimano, J. A. B. Coelho, A. Coleiro, A. Condorelli, R. Coniglione, P. Coyle, A. Creusot, G. Cuttone, R. Dallier, A. De Benedittis, G. De Wasseige, V. Decoene, P. Deguire, I. Del Rosso, L. S. Di Mauro, I. Di Palma, A. F. Díaz, D. Diego-Tortosa, C. Distefano, A. Domi, C. Donzaud, D. Dornic, E. Drakopoulou, D. Drouhin, J. -G. Ducoin, P. Duverne, R. Dvornický, T. Eberl, E. Eckerová, A. Eddymaoui, M. Eff, D. van Eijk, I. El Bojaddaini, S. El Hedri, S. El Mentawi, V. Ellajosyula, A. Enzenhöfer, M. Farino, A. Ferrara, G. Ferrara, M. D. Filipović, F. Filippini, A. Foisseau, D. Franciotti, C. Frosin, L. A. Fusco, T. Gal, J. García Méndez, A. Garcia Soto, C. Gatius Oliver, N. Geißelbrecht, H. Ghaddari, L. Gialanella, B. K. Gibson, E. Giorgio, I. Goos, P. Goswami, S. R. Gozzini, R. Gracia, M. Guelfand, B. Guillon, C. Hanna, H. van Haren, E. Hazelton, A. Heijboer, L. Hennig, J. J. Hernández-Rey, A. Idrissi, W. Idrissi Ibnsalih, G. Illuminati, R. Jaimes, O. Janik, D. Joly, M. de Jong, P. de Jong, B. J. Jung, P. Kalaczyński, G. Kalaitzidakis, C. Karagiannis, U. F. Katz, J. Keegans, T. Khvichia, G. Kistauri, C. Kopper, A. Kouchner, Y. Y. Kovalev, L. Krupa, V. Kueviakoe, V. Kulikovskiy, R. Kvatadze, M. Labalme, R. Lahmann, M. Lamoureux, A. Langella, G. Larosa, C. Lastoria, J. Lazar, G. Lehaut, V. Lemaître, E. Leonora, N. Lessing, G. Levi, I. Lhenry-Yvon, M. Lincetto, M. Lindsey Clark, F. Longhitano, M. Loup, A. Luashvili, S. Madarapu, F. Magnani, V. A. Makeev, L. Malerba, F. Mamedov, P. Mánek, A. Manfreda, A. Manousakis, M. Marconi, A. Margiotta, A. Marinelli, C. Markou, L. Martin, M. Mastrodicasa, S. Mastroianni, J. Mauro, K. C. K. Mehta, G. Miele, P. Migliozzi, E. Migneco, M. L. Mitsou, C. M. Mollo, L. Morales-Gallegos, N. Mori, A. Mosbrugger, A. Moussa, I. Mozun Mateo, S. Mugnier, R. Muller, M. R. Musone, M. Musumeci, S. Navas, C. A. Nicolau, B. Nkosi, B. Ó Fearraigh, V. Oliviero, A. Orlando, E. Oukacha, L. Pacini, D. Paesani, P. Papini, V. Parisi, G. Pascua, B. Pascual-Estrugo, A. M. Păun, G. E. Păvălaš, S. Peña Martínez, M. Perrin-Terrin, V. Pestel, M. Petropavlova, L. Pfeiffer, P. Piattelli, A. Plavin, C. Poirè, V. Poireau, T. Pradier, J. Prado, S. Pulvirenti, N. Randazzo, A. Ratnani, S. Razzaque, I. C. Rea, D. Real, G. Riccobene, J. Robinson, A. Romanov, E. Ros, F. Salesa Greus, D. F. E. Samtleben, A. Sánchez Losa, S. Sanfilippo, M. Sanguineti, D. Santonocito, P. Sapienza, M. Scaringella, M. Scarnera, J. Schnabel, J. Schumann, M. Senniappan, P. A. Sevle Myhr, I. Sgura, R. Shanidze, Y. Shitov, F. Šimkovic, A. Simonelli, A. Sinopoulou, C. Sironneau, M. Spurio, O. Starodubtsev, I. Štekl, D. Stocco, M. Taiuti, Y. Tayalati, J. Tena, H. Thiersen, S. Thoudam, I. Tosta e Melo, B. Trocmé, V. Tsourapis, C. Tully, E. Tzamariudaki, A. Ukleja, A. Vacheret, V. Valsecchi, V. Van Elewyck, G. Vannoye, E. Vannuccini, G. Vasileiadis, F. Vazquez de Sola, A. Veutro, S. Viola, D. Vivolo, A. van Vliet, L. Voorend, E. de Wolf, S. Zavatarelli, D. Zito, J. D. Zornoza, J. Zúñiga

AI总结 本文假设KM3-230213A超高能中微子事件来自质量超过PeV的重暗物质衰变,利用蒙特卡洛模拟分析不同衰变通道的信号分布,发现最佳拟合质量大于约100 PeV,寿命在10^26-10^27秒,但与现有观测存在矛盾。

Comments 11 pages, 3 figures, 1 table

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AI中文摘要

本工作探索了超高能中微子事件KM3-230213A起源于质量超过PeV尺度的重暗物质粒子衰变的假设。分析利用了事件的沉积能量和到达方向,以及完整的探测器蒙特卡洛模拟,计算了不同衰变通道的预期信号分布,并评估了银河系和河外暗物质的相对贡献。假设该事件起源于暗物质,我们发现所有考虑的场景中,在95%置信水平下,优选质量大于约100 PeV,最佳拟合寿命在$10^{26}$-$10^{27}$秒范围内。这些优选区域与其他中微子望远镜和伽马射线观测的现有界限存在矛盾。

英文摘要

This work explores the hypothesis that the ultra-high-energy neutrino event KM3-230213A originates from the decay of a heavy dark matter particle with a mass above PeV scale. The analysis exploits the deposited energy and arrival direction of the event as well as a complete detector Monte Carlo simulation to compute the expected signal distributions for different decay channels and assesses the relative contributions from Galactic and extragalactic dark matter. Assuming a dark matter origin of the event, we find that the preferred mass at 95% C.L. is larger than about 100 PeV in all scenarios considered, with best-fit lifetimes in the range $10^{26}$-$10^{27}$ s. These preferred regions are in tension with existing bounds from other neutrino telescopes and gamma-ray observations.

2606.11101 2026-06-10 hep-th gr-qc 新提交

Supersymmetry of the static Reissner-Nordström black hole in Bertotti-Robinson ($\mathrm{AdS}_2 \times \mathbb{S}^2$)

Bertotti-Robinson (AdS₂ × S²) 中静态 Reissner-Nordström 黑洞的超对称性

Andrea Di Pinto, Adriano Viganò

AI总结 在 N=2, D=4 超引力中研究 Bertotti-Robinson 宇宙中带电加速黑洞的超对称性,通过计算 Killing 旋子并证明解饱和 BPS 界,进而计算黑洞质量并分析热力学,最后推广到含宇宙学常数的极端解。

Comments 23 pages

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AI中文摘要

我们在 $N=2$, $D=4$ 超引力的背景下,研究了嵌入 Bertotti-Robinson 宇宙中的带电加速黑洞的超对称性。在回顾解之后,我们研究了保证超对称性的约束条件,并显式计算了时空的 Killing 旋子。我们证明了超对称解饱和了 BPS 界,并利用这一结果计算了黑洞的质量,分析了该解的热力学。最后,我们将极端解推广到包含宇宙学常数的情况。

英文摘要

We examine supersymmetry of charged and accelerating black holes embedded in a Bertotti-Robinson universe, in the context of $N=2$, $D=4$ supergravity. After a review of the solution, we study the constraints that guarantee supersymmetry and explicitly compute the Killing spinors of the spacetime. We show that the supersymmetric solution saturates the BPS bound, and we use this result to compute the mass of the black hole and to analyze the thermodynamics of the solution. Finally, we present a generalization of the extremal solution to include the cosmological constant.

2606.09991 2026-06-10 quant-ph gr-qc 新提交

Graviton-mediated entanglement due to light bending from a quantum rotor

引力子介导的由于量子转子光线弯曲导致的纠缠

Dripto Biswas, Sougato Bose, Anupam Mazumdar, Marko Toroš

AI总结 本文研究在光机械装置中,量子转子与光子通过引力子虚交换产生纠缠,并分析转子高速自旋对纠缠的影响,提出通过光子顺行与逆行运动的线性纠缠熵差异观测量子引力效应。

Comments 8 pages, 1 figure

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AI中文摘要

检验引力量子性质的关键测试之一是验证物质与光子之间的虚媒介是否引起量子光线弯曲现象。涉及引力子自旋-2和自旋-0分量的离壳自由度再现了光线的经典偏折,并已被预测会在物质与光子之间产生纠缠。本文探索在包含量子转子和光子的光机械装置中,由量子引力相互作用产生的纠缠。引力子的虚交换在光子自由度与量子转子的空间位置之间提供纠缠,而转子的转动状态影响纠缠幅度。我们分析了一个处于近似经典角动量状态的高速旋转转子,并量化其对光子与量子转子位置之间引力诱导纠缠的影响。我们表明,光子相对于量子转子的顺行与逆行运动的线性纠缠熵之差提供了可观测的物理后果。

英文摘要

One of the key tests of the quantum nature of gravity is to test whether the virtual mediator of gravity between matter and photon gives rise to the quantum light-bending phenomenon. The off-shell degrees of freedom, involving the spin-2 and spin-0 components of graviton, reproduce the classical deviation of light rays, as well as have been predicted to generate entanglement between matter and photon. This paper explores the generation of entanglement due to the quantum gravitational interaction in an optomechanical setup with a quantum rotor and photon. The virtual exchange of a graviton provides entanglement between the photon degrees of freedom and the spatial position of the quantum rotor, with the rotational state affecting its magnitude. We analyze the case of a high spinning rotor, in an approximately classical state of angular momentum, and quantify its effect on the gravitationally induced entanglement between the photon and the position of the quantum rotor. We show that the difference in the linear entanglement entropies, of prograde-and-retrograde motion of the photon with respect to the quantum rotor, provide tangible observable consequences.

2606.09983 2026-06-10 hep-th gr-qc 新提交

Anomaly-driven evaporation endpoints of a two-dimensional regular black hole

二维规则黑洞的异常驱动蒸发终点

Damien A. Easson

AI总结 通过将Polyakov量子扇区替换为膨胀子耦合异常模型,重新审视二维规则Bardeen-like黑洞的后反应晚期终点,分类有限半径处的渐近允许分支,发现自然结果类似残留,存活零分支是高度约束的软零替代。

Comments 19 pages, 1 figure

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AI中文摘要

四维最小耦合物质的球对称约化产生一个二维理论,其中包含膨胀子耦合物质而非最小耦合共形物质。我们利用这一区别重新审视Barenboim、Frolov和Kunstatter所考虑的规则二维Bardeen-like黑洞的后反应晚期终点问题。将Polyakov量子扇区替换为Fabbri、Farese和Navarro-Salas(FFN)的膨胀子耦合异常模型,我们推导出相应的半经典场方程,并对有限半径处渐近允许的晚期分支进行分类。对于任何具有有限非零共形因子的静态有限半径分支,晚期混合方程强制$J'(r_\infty)=0$,因此$r_\infty=\sqrt{2}\\,\ell$,与局部膨胀子异常约定无关。对于满足所述状态尾假设的有限半径零分支,排除通常的强宇宙监督恢复指数零边界。除边界情况$p=2$外,一般的幂律分支$e^{2\rho}\sim v^{-p}$($p>1$)同样被排除,$p=2$是此类中仅存的零漏洞。在FFN模型中,该漏洞的稳定实现携带有限仿射通量,并需要更强的状态尾衰减$s_\phi=O(v^{-2})$。自然的有限半径结果是类似残留的,而存活的零分支是高度约束的软零替代。

英文摘要

Spherical reduction of four-dimensional minimally coupled matter yields a two-dimensional theory with dilaton-coupled matter rather than minimally coupled conformal matter. We use this distinction to revisit the backreacted late-time endpoint problem for the regular two-dimensional Bardeen-like black hole considered by Barenboim, Frolov, and Kunstatter. Replacing the Polyakov quantum sector by the dilaton-coupled anomaly model of Fabbri, Farese, and Navarro-Salas (FFN), we derive the corresponding semiclassical field equations and classify the asymptotically allowed late branches at finite radius. For any quiescent finite-radius branch with finite nonzero conformal factor, the late-time mixed equation enforces $J'(r_\infty)=0$, and hence $r_\infty=\sqrt{2}\,\ell$, independently of the local dilaton-anomaly convention. For finite-radius null branches satisfying the stated state-tail assumptions, the ordinary strong-cosmic-censorship-restoring exponential null boundary is excluded. Generic power-law branches $e^{2ρ}\sim v^{-p}$ with $p>1$ are likewise excluded, except for the borderline case $p=2$, which is the only remaining null loophole of this type. In the FFN model, the settled realization of this loophole carries finite affine flux and requires the stronger state-tail decay $s_ϕ=O(v^{-2})$. The natural finite-radius outcome is remnant-like, while the surviving null branch is a highly constrained soft-null alternative.

2606.09969 2026-06-10 hep-th gr-qc hep-ph 新提交

Calling the Brane Next Door: The Kaluza-Klein Tower as a Gravitational Information Channel

呼唤隔壁的膜:卡鲁扎-克莱因塔作为引力信息通道

Karim Benakli

AI总结 研究邻近膜世界通过引力通信的可能性,提出将卡鲁扎-克莱因塔视为多输入多输出通信信道,分析其信道矩阵和信息论特性。

Comments 17 pages, 1 figure

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AI中文摘要

两个局域在相邻膜上的世界能否仅通过引力进行通信?我们在一个最小的高维框架中研究这个问题,其中标准模型场被限制在我们的膜上,而引力在体空间中传播。从膜到膜的引力子传播子,我们推导出膜间链路的延迟传递核,并识别从倏逝到传播的卡鲁扎-克莱因模式的转变。核心思想是赋予卡鲁扎-克莱因塔一个新的角色:不仅作为一组有质量的引力态,而且作为一组通信载波。在第一个KK阈值以下,通道实际上是四维的,仅由无质量引力子介导。在阈值以上,有质量KK模式作为额外的传播子通道打开,信息可以编码在其占据模式、相对相位、到达时间结构以及普通信号变量中。紧致化决定了KK质量、波函数、膜重叠因子和传播相位,这些共同定义了多输入多输出(MIMO)信道矩阵。在分辨模式极限下,塔提供了近似平行的子通道,适用于标准信息论概念,如容量界、注水原理、有效秩和稀疏占用码。此类信号的产生和检测高度依赖于模型,并且不假设现有技术可行。尽管如此,信道结构是明确定义的:一个邻近的膜世界可能在紧致空间中与我们相隔微观距离,但由于唯一的共享相互作用是引力,它仍然隐藏。第一个可观测的特征可能不是有意的信息,而是卡鲁扎-克莱因塔本身的谱和模式结构,揭示了附近隐藏世界几何的部分信息。

英文摘要

Could two worlds localised on neighbouring branes communicate through gravity alone? We investigate this question in a minimal higher-dimensional framework in which Standard Model fields are confined to our brane while gravity propagates through the bulk. From the brane-to-brane graviton propagator we derive the retarded transfer kernel of the inter-brane link and identify the transition from evanescent to propagating Kaluza-Klein modes. The central idea is to give the Kaluza-Klein tower a new role: not only as a spectrum of massive gravitational states, but as a set of communication carriers. Below the first KK threshold the channel is effectively four-dimensional and is mediated only by the massless graviton. Above threshold, massive KK modes open as additional propagating subchannels, and information may be encoded in their occupation pattern, relative phases, and arrival-time structure as well as in ordinary signal variables. The compactification determines the KK masses, wavefunctions, brane overlap factors, and propagation phases, which together define a multi-input multi-output (MIMO) channel matrix. In the resolved-mode limit, the tower yields approximate parallel subchannels, to which standard information-theoretic notions such as capacity bounds, water-filling, effective rank, and sparse occupancy codes apply. The production and detection of such signals are highly model-dependent and not assumed to be feasible with known technology. Nevertheless, the channel structure is well defined: a neighbouring brane-world could be separated from us by a microscopic distance in the compact space while remaining hidden because the only shared interaction is gravity. The first observable signature may not be a deliberate message, but the spectral and modal structure of the Kaluza-Klein tower itself, revealing partial information about the geometry of a nearby hidden world.

2606.09943 2026-06-10 hep-ph gr-qc hep-th 新提交

Testing Supersymmetric Hidden Sectors with Long-Baseline Atom Interferometers

用长基线原子干涉仪测试超对称隐藏扇区

Oem Trivedi

AI总结 提出长基线原子干涉仪可探测超对称隐藏扇区中的超轻模量、膨胀子或隐藏标量,通过相干相位振荡约束有效标量耦合,并映射到超对称规范动能函数等参数,为超对称和弦理论红外遗迹提供非对撞机探针。

Comments 8 pages, 1 figure, comments welcome

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AI中文摘要

原子干涉测量通过精确测量量子相位,为近地高能物理探测提供了灵敏手段。本文指出,MAGIS和AION类长基线原子干涉仪也可用于测试超对称隐藏扇区,前提是这些扇区包含诱导相干相位振荡的超轻模量、膨胀子或隐藏标量。在此设置中,测量的原子相位不仅约束有效的唯象标量耦合,还可与超对称规范动能函数、Kähler度量、Yukawa耦合、Higgs扇区参数以及沿轻隐藏扇区方向的QCD标度的导数相关联。我们推导了从一般SUSY/SUGRA模量到有效原子干涉耦合的映射,并表明未来的相位灵敏度可能探测到原本隐藏场的极小的可见扇区混合。这确定了MAGIS/AION类实验作为超对称和弦理论红外遗迹的非对撞机探针,与引力波、天体物理和对撞机搜索互补。

英文摘要

Atomic interferometry provides a sensitive near Earth probe of high energy physics through precision measurements of quantum phase. In this Letter, we point out that MAGIS and AION like long-baseline atom interferometers can also be used to test supersymmetric hidden sectors, if these sectors contain ultralight moduli, dilatons or hidden scalars that induce coherent phase oscillations. In such a setup, the measured atomic phase does not only constrain an effective phenomenological scalar coupling. It can be related to derivatives of supersymmetric gauge kinetic functions, Kähler metrics, Yukawa couplings, Higgs sector parameters and the QCD scale along light hidden sector directions. We derive the mapping from a generic SUSY/SUGRA modulus to the effective atom interferometric coupling, and show that future phase sensitivities may probe very small visible sector admixtures of otherwise hidden fields. This identifies MAGIS/AION type experiments as non-collider probes of supersymmetric and string-motivated infrared relics, complementary to gravitational wave, astrophysical and collider searches.

2606.10910 2026-06-10 gr-qc hep-th 新提交

Convex foliations and trapped submanifolds

凸叶层与俘获子流形

Gustavo Dotti

AI总结 研究黑洞外通信域中高余维紧致俘获子流形(CTM)的存在性,通过对称坍缩时空和Kerr-Newman族验证,表明低维CTM(如俘获环)可作为黑洞特征。

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AI中文摘要

关于任意余维大于1的紧致俘获子流形(CTM)不能与黑洞外通信域相交的猜想,在$n+1$维($n \geq 2$)对称坍缩时空以及整个Kerr-Newman次极端族中进行了检验。结果支持低维CTM(如俘获环)应被视为黑洞特征的观点。

英文摘要

The conjecture that compact trapped submanifolds (CTMs) of any codimension greater than one cannot intersect the domain of outer communications of a black hole is tested in symmetrically collapsing spacetimes of $n+1$ dimensions, $n \geq 2$, and on the entire Kerr-Newman sub-extreme family. The results provide evidence to the idea that CTMs of lower dimension, such as trapped loops, should be ragarded as black hole signatures.

2606.10792 2026-06-10 gr-qc 新提交

Black hole formation by a scalar field

标量场形成的黑洞

D. E. Afanasev, M. O. Katanaev

AI总结 本文讨论广义相对论中带标量场的Liouville解,该解在指数势且无下界时描述球对称黑洞的形成,事件视界从零半径出现并以光速膨胀,远距离观测者可测量几何缺陷。

Comments 7 pages, 1 figure

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AI中文摘要

讨论了广义相对论中带标量场的Liouville解。该解在全局洛伦兹变换下不变,且对时间的依赖无法消除。如果标量场势是指数形式且无下界,Liouville解描述球对称黑洞的形成。事件视界是一个球面,在有限时刻以无穷小半径出现,随后以光速膨胀至无穷远。远距离观测者可以测量视界出现点的几何缺陷。该缺陷类似于时空的单极子或球面位错产生的缺陷。与Schwarzschild解比较得到质量函数,该函数与时间的平方成正比。

英文摘要

The Liouville solution in General Relativity with a scalar field is discussed. This solution is invariant with respect to global Lorentz transformations, and dependence on time cannot be removed. If the scalar field potential is exponential and unbounded from below, the Liouville solution describes the formation of spherically symmetric black hole. The event horizon is a sphere, which appears with infinitesimal radius at a finite moment of time and afterwards expands with the velocity of light to infinity. A distant observer can measure the geometric defect at the point where the horizon appears. It is similar to the defect produced by the monopole or spherical dislocation of space-time. Comparison with the Schwarzschild solution yields the mass function which is proportional to the time squared.

2606.10647 2026-06-10 gr-qc hep-th quant-ph 新提交

Hawking-Page phase transition for pure Lovelock black holes

纯Lovelock黑洞的Hawking-Page相变

Nitesh K. Dubey, Sanved Kolekar

AI总结 研究纯Lovelock引力中静态球对称AdS黑洞的热力学性质,发现最小温度与HP相变温度的关系受维度和阶数修正,且归一化Ruppeiner标量曲率在HP相变处为仅依赖时空维度的普适常数。

Comments 2 figures, 21 pages

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AI中文摘要

我们研究了静态球对称反德西特(AdS)黑洞的热力学性质,重点关注特征温度之间的相互作用,以及Hawking-Page(HP)相变处Ruppeiner标量曲率的普适性。特别地,我们研究了纯Lovelock引力中静态球对称AdS黑洞的最小温度与HP相变温度之间的关系。对于爱因斯坦引力中的电中性情况,$(d+1)$维的最小温度与$d$维的HP相变温度一致,而在更高阶的纯Lovelock理论中,这一关系被一个依赖于维度和阶数的因子修正,并在适当极限下简化为爱因斯坦结果。对于正则系综中的带电AdS黑洞,在广义相对论中,两个温度相差一个简单的依赖于维度的因子,而在更高曲率的纯Lovelock理论中不存在普适关系。我们进一步分析了HP相变处的归一化Ruppeiner标量曲率,并表明对于纯Lovelock理论中的电中性黑洞,它是一个仅依赖于时空维度的普适常数。在适当条件下,即使对于爱因斯坦理论中正则系综的带电静态球对称黑洞,归一化标量曲率也保持常数,而在一般的纯Lovelock理论中,它依赖于热力学参数如压强和静电势,并在大压强或同时大电势和大压强极限下渐近趋于常数。

英文摘要

We investigate the thermodynamic properties of static, spherically symmetric Anti-de Sitter (AdS) black holes, focusing on the interplay between characteristic temperatures, as well as on the universality of Ruppeiner scalar curvature at the Hawking-Page (HP) phase transition. In particular, we study the relation between the minimum temperature and the HP phase transition temperature for static, spherically symmetric AdS black holes in pure Lovelock gravity. For the electromagnetically neutral case in Einstein gravity, the minimum temperature in $(d+1)$ dimensions coincides with the HP transition temperature in $d$ dimensions, while in higher pure Lovelock theories this relation is modified by a dimension- and order-dependent factor, reducing to the Einstein result in appropriate limits. For charged AdS black holes, in the grand canonical ensemble, in general relativity, the two temperatures differ by a simple dimension-dependent factor, whereas no universal relation persists in higher curvature pure Lovelock theories. We further analyze the normalized Ruppeiner scalar curvature at the HP transition and show that it is a universal constant depending only on the spacetime dimension for electromagnetically neutral black holes in pure Lovelock theories. The normalized scalar curvature remains a constant, under appropriate conditions, even for the charged static spherically symmetric black holes in the grand canonical ensemble for the Einstein theory case, whereas in general pure Lovelock theories it depends on thermodynamic parameters such as pressure and electrostatic potential, asymptotically approaching a constant in the large-pressure or simultaneous large-potential and large-pressure limits.

2606.10491 2026-06-10 gr-qc 新提交

Stability and Physical Properties of Compact Stars Beyond Einstein Gravity

超越爱因斯坦引力的致密星的稳定性与物理性质

M. Sharif, Adeeba Arooj

AI总结 在$f(\mathbb{Q},\mathcal{L}_{m})$引力框架下,利用Krori-Barua解研究各向异性天体的物理性质和稳定性,验证了致密星在该修正引力中的存在性。

Comments 38 pages, 10 figures

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Journal ref
Nuclear Phys. B 1023(2026)117295
AI中文摘要

本文讨论了$f(\mathbb{Q},\mathcal{L}_{m})$引力框架下各向异性天球的可行特征,其中$\mathbb{Q}$表示非度规标量,$\mathcal{L}_{m}$是物质拉格朗日量。利用特定的非奇异解(Krori-Barua解)研究了静态球对称结构的几何构型。考虑了该理论的一个特定模型以导出显式场方程。使用Darmois匹配条件评估度规系数中的未知常数。为了验证在该引力框架下致密对象的可能存在性,我们分析了它们的基本物理性质,包括流体参数、梯度、表面红移、质量-半径关系、各向异性度量、致密因子、能量条件和状态方程。通过绝热指数和声速验证了所考虑的恒星对象的稳定性。我们的结果表明,所有必要的物理条件都得到满足,证实了在该修正引力中存在物理稳定的各向异性天体。

英文摘要

This manuscript discusses feasible features of anisotropic celestial sphere within the framework of $f(\mathbb{Q},\mathcal{L}_{m})$ gravity, where $\mathbb{Q}$ represents non-metricity scalar and $\mathcal{L}_{m}$ is the matter Lagrangian. The geometric configuration of static spherical symmetric structure is examined using a specific non-singular solution (Krori-Barua solution). A particular model of this theory is considered to derive explicit field equations. The Darmois matching conditions are used to evaluate unknown constants in the metric coefficients. To verify plausible existence of compact objects in this gravitational framework, we analyze their fundamental physical properties including fluid parameters, gradients, surface redshift, mass-radius relation, anisotropy measure, compactness factor, energy conditions and equations of state. The stability of the considered stellar objects is verified by adiabatic index and sound speed. Our results demonstrate that all required physical conditions are satisfied, confirming the existence of physically stable anisotropic celestial objects within this modified gravity.

2606.10332 2026-06-10 gr-qc hep-th 新提交

Tuning A Rotating Black Hole Spectrum with Dark Matter Halo: Quasibound States, Scalar Cloud, Black Hole Bomb and Superradiant Scattering

用暗物质晕调谐旋转黑洞谱:准束缚态、标量云、黑洞炸弹和超辐射散射

David Senjaya

AI总结 研究嵌入Dehnen暗物质晕的旋转黑洞的谱动力学,通过解析渐近匹配方法推导准束缚态谱和超辐射放大因子,发现晕参数系统性地改变束缚能、临界质量和超辐射窗口。

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AI中文摘要

我们研究了嵌入Dehnen $(1,4,\gamma)$暗物质晕中的旋转黑洞的谱动力学,其中准束缚态和超辐射散射共同表征了系统的物理响应。从精确的Schwarzschild--Dehnen解出发,通过Newman--Janis算法构造其旋转对应物,得到一个包含结构晕影响的一致轴对称几何。Dehnen轮廓通过其内斜率参数$\gamma$引入了对时空近地平线和渐近区域的受控变形。利用解析渐近匹配方法,我们推导了准束缚态谱,并表明频率的实部保留了类氢结构,但通过有效质量标度$\rho_0 r_0^3/(\gamma-3)$被晕系统性地移动。特别是,更致密、更延伸和更尖的晕增强了束缚能,降低了不稳定性开始的临界质量,并通常抑制了黑洞炸弹的增长速率。在散射部分,我们得到了超辐射放大因子的解析表达式,并发现增强束缚效应的相同晕性质也倾向于使超辐射窗口变窄。这些结果表明,准束缚态和超辐射散射是统一谱结构的互补表现,Dehnen晕作为一个环境调谐器,将其性质直接印刻在旋转黑洞的共振谱和能量提取通道上。

英文摘要

We investigate the spectral dynamics of a rotating black hole embedded in a Dehnen $(1,4,γ)$ dark matter halo, where quasibound states and superradiant scattering jointly characterize the physical response of the system. Starting from an exact Schwarzschild--Dehnen solution, we construct its rotating counterpart via the Newman--Janis algorithm, yielding a consistent axisymmetric geometry that incorporates the influence of a structured halo. The Dehnen profile, through its inner slope parameter $γ$, introduces a controlled deformation of both the near-horizon and asymptotic regions of the spacetime. Using the analytical asymptotic matching method, we derive the quasibound-state spectrum and show that the real part of the frequency retains a hydrogen-like structure, but is systematically shifted by the halo through the effective mass scale $ρ_0 r_0^3/(γ-3)$. In particular, denser, more extended, and more cuspy halos enhance the binding energy, lower the critical mass required for the onset of instability, and typically suppress the growth rate of the black hole bomb. In the scattering sector, we obtain an analytic expression for the superradiant amplification factor and find that the same halo properties that strengthen binding effects also tend to narrow the superradiant window. These results demonstrate that quasibound states and superradiant scattering are complementary manifestations of a unified spectral structure, with the Dehnen halo acting as an environmental tuner that imprints its properties directly onto both the resonance spectrum and the energy-extraction channels of the rotating black hole.

2606.10220 2026-06-10 gr-qc 新提交

Hawking Temperatures of Dynamical Black Holes from the RVB--Residue Method:Vaidya and Kinnersley Geometries

从RVB-留数方法看动态黑洞的霍金温度:Vaidya和Kinnersley几何

Wen-Xiang Chen

AI总结 本文发展了基于局部留数的RVB方法,用于计算动态黑洞的霍金温度,并在Vaidya和Kinnersley黑洞中验证了其有效性。

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AI中文摘要

本文发展了Robson-Villari-Biancalana方法的局部留数扩展,用于计算动态黑洞的霍金温度。由于非稳态黑洞通常不存在全局类时Killing矢量,其温度必须在局部、近视界和准稳态的意义下理解。通过将近视界径向函数解析延拓到复平面,霍金温度可以从逆视界函数在对应局部视界的单极点处的留数中提取。该留数方法首先应用于Vaidya黑洞,再现了标准的局部俘获视界温度(T=1/(8\pi M(v)))。然后该方法扩展到任意加速的Kinnersley黑洞,其视界依赖于时间和角度坐标。在这种情况下,RVB-留数方法给出了与广义乌龟坐标方法一致的逐点依赖的局部霍金温度。结果表明,只要将温度解释为局部近视界量而非全局平衡温度,RVB-留数方法就可以从稳态黑洞自然地推广到动态和非球对称黑洞。

英文摘要

This paper develops a local residue-based extension of the Robson--Villari--Biancalana method for calculating Hawking temperatures of dynamical black holes. Since non-stationary black holes generally do not admit a global timelike Killing vector, their temperature must be understood in a local, near-horizon, and quasi-stationary sense. By analytically continuing the near-horizon radial function into the complex plane, the Hawking temperature can be extracted from the residue of the inverse horizon function at the simple pole corresponding to the local horizon. This residue prescription is first applied to the Vaidya black hole, where it reproduces the standard local trapping-horizon temperature (T=1/(8πM(v))). The method is then extended to the arbitrarily accelerating Kinnersley black hole, whose horizon depends on time and angular coordinates. In this case, the RVB--residue method yields a point-dependent local Hawking temperature consistent with the generalized tortoise-coordinate approach. The results show that the RVB--residue method can be naturally generalized from stationary black holes to dynamical and non-spherical black holes, provided that the temperature is interpreted as a local near-horizon quantity rather than a global equilibrium temperature.

2606.10175 2026-06-10 gr-qc 新提交

Gravitational Wave Energy Emitted in the Head-On Collision of Two Black Holes

两个黑洞对头碰撞中发射的引力波能量

Nesibe Derin Sivrioglu, Robert R. Caldwell

AI总结 研究等质量黑洞对头碰撞的引力辐射谱,提出用最终黑洞最低准正则模式标记低频端转折点,构建无自由参数解析模型,预测辐射能量占总初始能量的13.8%,与数值相对论吻合。

Comments 4 pages, 2 figures

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AI中文摘要

两个等质量黑洞对头碰撞产生的引力辐射谱是什么?发射由低频轫致辐射主导,产生平坦的能量谱。但谱在哪里转折?我们提出最终黑洞的最低准正则模式标志着低频域的结束。结果是一个解析模型,给出了总发射能量作为质心系中黑洞速度的函数。该模型无自由参数,预测总初始能量的13.8%以引力辐射形式发射,与数值相对论吻合良好。这一结果还使得能够计算记忆的非线性贡献,即引力波爆发通过后时空的持续畸变。数值相对论模拟的进展将使我们能够在越来越相对论性的速度下测试我们的模型,从而深入了解这种极端碰撞。

英文摘要

What is the spectrum of gravitational radiation produced by the head-on collision of two equal-mass black holes? The emission is dominated by low frequency bremsstrahlung, producing a flat energy spectrum. But where does the spectrum turn over? We propose that the lowest quasinormal mode of the final black hole marks the end of the low-frequency domain. The result is an analytic model of the total emitted energy as a function of the black hole velocity in the center of mass frame. With no free parameters, the model predicts that 13.8% of the total initial energy is emitted in gravitational radiation, in good agreement with numerical relativity. This result also enables calculation of the nonlinear contribution to the memory, a persistent distortion of the spacetime after passage of the gravitational wave burst. Advances in numerical relativity simulations will enable tests of our model for increasingly relativistic speeds, providing insight into this extreme collision.

2606.10100 2026-06-10 gr-qc math-ph math.MP 新提交

Static Spherically Symmetric Chaplygin and Polytropic Fluid Solutions in Teleparallel $F(T)$ Gravity

Teleparallel $F(T)$ 引力中的静态球对称 Chaplygin 和多方流体解

Alexandre Landry

AI总结 研究协变teleparallel F(T)引力中由非线性Chaplygin和多方流体驱动的静态球对称时空,利用CSC形式推导场方程和守恒律,发展重构程序获得多种解分支,包括常数半径、致密星、类黑洞和类虫洞分支,揭示了非线性扭率修正对解空间的影响。

Comments 14 pages, no figure

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AI中文摘要

我们研究了由非线性 Chaplygin 和多方流体源驱动的协变 teleparallel $F(T)$ 引力中的静态球对称时空。利用协变 coframe/spin-connection (CSC) 形式,我们推导了控制允许物质分布和非线性扭率扇区的相应场方程和守恒律。发展了一个通用的重构程序,允许对任意 coframe 假设和流体状态方程系统地确定 teleparallel $F(T)$ 模型。聚焦于幂律构型,我们获得了若干类重构解分支,包括常数半径、类致密星、类黑洞和类虫洞分支。Chaplygin 扇区自然产生能够支持可穿越虫洞几何的有效暗能量和奇异物质区域,而多方扇区则为恒星内部和致密天体提供了物理相关的模型。我们讨论了重构分支的相关视界和喉结构、扭率奇点、能量条件和稳定性。所得几何在 Coley--Landry 不变量分类框架下进行组织,突出了非线性扭率修正对解空间塑造的作用。总体而言,这项工作为超越广义相对论的致密天体、有效宇宙学扇区和正则核心强场几何的构建与解释提供了一个统一的协变框架。

英文摘要

We investigate static, spherically symmetric (SS) spacetimes in covariant teleparallel $F(T)$ gravity sourced by nonlinear Chaplygin and polytropic fluids. Using the covariant coframe/spin-connection (CSC) formalism, we derive the corresponding field equations and conservation laws governing admissible matter distributions and nonlinear torsion sectors. A general reconstruction procedure is developed, allowing the systematic determination of teleparallel $F(T)$ models for arbitrary coframe ansätze and fluid equations of state. Focusing on power-law configurations, we obtain several classes of reconstructed solution branches, including constant-radius, compact-object-like, black-hole-like (BH-like), and wormhole-like (WH-like) branches. The Chaplygin sector naturally generates effective dark-energy and exotic-matter regimes capable of supporting traversable wormhole geometries, while the polytropic sector provides physically relevant models for stellar interiors and compact objects. We discuss the associated horizon and throat structures, torsion singularities, energy conditions, and stability properties of the reconstructed branches. The resulting geometries are organized within the Coley--Landry invariant classification framework, highlighting the role of nonlinear torsion corrections in shaping the solution space. Overall, this work provides a unified covariant framework for the construction and interpretation of compact objects, effective cosmological sectors, and regular-core strong-field geometries beyond General Relativity.

2606.11146 2026-06-10 math-ph cond-mat.stat-mech hep-th math.MP quant-ph 新提交

The Yang-Baxter Equation for the Chiral Potts Model and Integrable Parafermions

手性波茨模型的杨-巴克斯特方程与可积准费米子

Zhao Zhang

AI总结 从手性波茨模型的星-三角和星-星关系构造出具有三个谱参数的杨-巴克斯特方程,推广了可积边模型与顶点模型的统一。

Comments 23 pages, 4 figures

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AI中文摘要

从手性波茨模型的星-三角和星-星关系构造了一种新型的杨-巴克斯特方程(YBE),其$R$矩阵由三个谱参数参数化。作为伊辛模型的$Z_N$对称推广,其玻尔兹曼权重已知依赖于两个变量,描述了一条对于$N>2$时亏格大于1的曲线,除了对应于Fateev-Zamolodchikov链的自对偶点。结合伊辛等边模型的量子哈密顿量同时包含最近邻相互作用和原位势项这一事实,导致了$R$算子的额外谱参数。我的构造扩展了最近可积边模型和顶点模型的统一,该统一将Onsager的星-三角关系从边模型YBE的单纯替代形式重新解释为其基础要素。

英文摘要

A new type of Yang-Baxter equation (YBE) for $R$-matrices parameterized by three spectral parameters is constructed from the star-triangle and star-star relations for the chiral Potts model. As the $Z_N$ symmetric generalization to the Ising model, its Boltzmann weights are known to depend on two variables describing a curve with genus larger than one for $N>2$, except for the self-dual point corresponding to the Fateev-Zamolodchikov chain. This combined with the fact that the quantum Hamiltonians of edge models like Ising contain both nearest neighbor interaction and onsite potential terms results in the extra spectral parameter of the $R$-operator. My construction extends the recent unification of solvable edge and vertex models which recasts Onsager's star-triangle relation from a mere alternative form of the YBE for edge models to its underlying ingredient.

2606.11064 2026-06-10 physics.chem-ph cond-mat.dis-nn cond-mat.mtrl-sci cond-mat.str-el physics.comp-ph 新提交

The UZH protocol: Separating errors and constructing improved CP2K basis sets and pseudopotentials

UZH协议:分离误差并构建改进的CP2K基组和赝势

Hossein Mirhosseini, Tiziano M. A. Müller, Matthias Krack, Thomas D. Kühne, Jürg Hutter

AI总结 提出UZH协议,通过三路比较分解CP2K中的高斯基组和赝势误差,并优化参数文件,从而改进基组和赝势。

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AI中文摘要

可靠的密度泛函模拟需要数值设置,其残余误差小于所解释的化学和材料趋势。在CP2K/Quickstep中,由于同时使用原子中心高斯基组和模守恒赝势,这一要求变得复杂:代码间的差异通常包含两者的贡献。我们提出了UZH协议,这是一个闭环CP2K工作流,用于在小分子上校准分子优化的高斯基组,在单质晶体状态方程基准测试中验证所得设置,并识别限制性近似是高斯基组还是赝势。然后根据诊断结果修改参数文件。核心诊断是在生产级CP2K-GTH-UZH计算、使用相同Goedecker–Teter–Hutter赝势的系统平面波表示的SIRIUS计算,以及全电子全势线性化增广平面波SIRIUS参考之间进行三路比较。这种构造将实际的CP2K误差分解为高斯基组分量和赝势分量。该协议区分了基组受限的稀有气体和重元素情况与赝势受限的过渡金属情况,指导了使用CP2K基组和赝势优化器的针对性修订,并生成了改进的MOLOPT基组和GTH赝势作为工作流的显式输出。因此,UZH协议是建设性的:它不仅仅是在事后测量或减少误差,而是允许将验证异常转化为经过验证的CP2K参数文件,用于跨分子和凝聚相的模拟。

英文摘要

Reliable density-functional simulations require numerical settings whose residual errors are smaller than the chemical and materials trends being interpreted. In CP2K/Quickstep, this requirement is complicated by the joint use of atom-centered Gaussian basis sets and norm-conserving pseudopotentials: a code-to-code discrepancy usually contains both contributions. We present the UZH protocol, a closed-loop CP2K workflow that calibrates molecularly optimized Gaussian basis sets on small molecules, validates the resulting settings in unary-crystal equation-of-state benchmarks, identifies whether the limiting approximation is the Gaussian basis or the pseudopotential. The diagnosis is then used to revise the parameter files. The central diagnostic is a three-way comparison between production CP2K-GTH-UZH calculations, SIRIUS calculations using the same Goedecker--Teter--Hutter pseudopotential in a systematic plane-wave representation, and all-electron full-potential linearized augmented-plane-wave SIRIUS references. This construction decomposes the practical CP2K error into a Gaussian-basis component and a pseudopotential component. The protocol distinguishes basis-limited noble-gas and heavy-element cases from pseudopotential-limited transition-metal cases, guides targeted revisions with the CP2K basis and pseudopotential optimizers, and produces improved MOLOPT basis sets and GTH pseudopotentials as explicit outputs of the workflow. The UZH protocol is therefore constructive: it does not merely measure or reduce errors a posteriori, but allows turning verification outliers into validated CP2K parameter files for simulations across molecules and condensed phases.

2606.11002 2026-06-10 quant-ph cond-mat.mes-hall cond-mat.str-el hep-th math-ph math.MP 新提交

Revealing the topology of quantum states via Kirkwood-Dirac quasiprobabilities

通过Kirkwood-Dirac拟概率揭示量子态的拓扑结构

Stefano Gherardini, Luca Lepori

AI总结 提出基于Kirkwood-Dirac拟概率表达奇异关联子来区分多体量子态拓扑类的方法,并设计通过量子淬火实现的拓扑见证与干涉测量协议。

Comments 15 pages, 4 figures. Comments and feedback are welcome

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AI中文摘要

我们讨论了一种理论方法,用于区分多体量子系统的两个态是否属于不同的拓扑类。该方法基于将奇异关联子——一种最近建立的量子拓扑区分工具——表示为Kirkwood-Dirac拟概率(KDQs)的函数。KDQs提供了双时间量子关联子的第一性原理表示。奇异关联子与KDQs之间的联系使得可以确定奇异关联子是将初始平凡态转换为拓扑非平凡态的可观测量的弱值。因此,我们提出了一种量子拓扑见证,该见证可以通过测量实现平凡相与拓扑相之间转变的突然淬火变换对多体系统的前后影响来实现。该见证在一个探测量子态上进行评估,其主要特征在文中详述。最后,直接利用允许完全重建KDQs的方案,我们讨论了一种用于拓扑区分的干涉测量协议,并对其实现的主要路线和挑战进行了总体讨论。

英文摘要

We discuss a theoretical approach to discriminate whether two states of a many-body quantum system belong or not to different topology classes. This approach is based on expressing a strange correlator - a recently established tool for quantum topology discrimination - between the states as a function of Kirkwood-Dirac quasiprobabilities (KDQs). KDQs provide a first-principles representation of two-time quantum correlators. The link between strange correlators and KDQs allows to establish that strange correlators are weak values of an observable converting an initial trivial state into a topologically non-trivial one. We thus propose a quantum topology witness that is achievable measuring the prior and subsequent effects on a many-body system of a sudden quench transformation that realizes the transition between trivial and topological phases. The witness is evaluated on a probe quantum state whose main features are detailed within the paper. Finally, directly exploiting schemes that allows for the complete reconstruction of KDQs, we address an interferometric protocol for topology discrimination, along with a general discussion of the main lines and challenges towards its implementation.

2606.10985 2026-06-10 hep-ph cond-mat.mes-hall 新提交

Revisiting Cherenkov radiation in anisotropic chiral matter: exact calculation reveals threshold-free emission

重新审视各向异性手性物质中的切伦科夫辐射:精确计算揭示无阈值发射

R. Martínez von Dossow, Luis F. Urrutia

AI总结 在Carroll-Field-Jackiw电动力学框架下,通过精确求解修正的麦克斯韦方程组,发现各向异性手性物质中慢速运动电荷可在特定频率范围内产生无阈值的切伦科夫辐射。

Comments 31 pages, 12 figures. Accepted for publication in Physical Review D

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AI中文摘要

我们在Carroll-Field-Jackiw电动力学框架内探索各向异性手性物质中的切伦科夫辐射,其中轴子角与位置呈线性依赖关系。通过推导柱坐标和空间-频率域中电磁场极化模式的闭式表达式,我们求解了修正的麦克斯韦方程组。为了强制执行因果律,我们在无穷远处的柱面上施加出射波边界条件,从而得到色散关系。我们的分析揭示了允许零个、一个或两个切伦科夫锥的具体角度和频率范围。我们还获得了所有情况下辐射的谱能量分布。值得注意的是,模型的一个扇区展现了一种新现象:慢速运动的电荷可以在没有阈值的情况下产生切伦科夫辐射,但仅限于特定频率范围。这种行为在标准材料中未观察到。利用我们的精确计算,我们还研究了先前基于系统格林函数计算的近似方法的可靠性。

英文摘要

We explore Cherenkov radiation in anisotropic chiral matter within the framework of Carroll-Field-Jackiw electrodynamics, where the axion angle exhibits a linear dependence on position. By deriving closed-form expressions for the polarization modes of electromagnetic fields in cylindrical coordinates and the space-frequency domain, we solve the modified Maxwell's equations. To enforce causality, we impose outgoing wave boundary conditions at a cylindrical surface at infinity, which yields the dispersion relations. Our analysis uncovers the specific angles and frequency ranges that allow for zero, one, or two Cherenkov cones. We also obtain the spectral energy distribution of the radiation in all cases. Notably, one sector of the model exhibits a novel phenomenon: Cherenkov radiation can be generated by slowly moving charges without a threshold, but only within a specific frequency range. This behavior is not observed in standard materials. Using our exact calculations, we also investigate the reliability of an approximate method previously proposed based on the calculation of the Green's function for the system.

2606.10970 2026-06-10 quant-ph cond-mat.supr-con 新提交

Inherent flux crosstalk and coupler-driven single-qubit gates in superconducting circuits

超导电路中的固有通量串扰和耦合器驱动的单量子比特门

Balázs Gulácsi, Guido Burkard

AI总结 研究超导量子比特中时变磁通引起的串扰,发现电容耦合量子比特间出现交叉电压驱动,并证明可利用耦合器实现快速单比特门,可能消除独立微波XY控制线。

Comments 13 pages, 6 figures

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AI中文摘要

串扰是指不必要的量子比特寻址。这在扩展量子信息系统时尤其有害,因为非预期的相互作用限制了系统的整体性能。对于超导量子比特,通过外部施加的磁通实现的可调耦合和频率可调性使得高保真纠缠门成为可能;然而,它们也通过非预期的通量耦合引入了串扰。在这项工作中,我们研究了量化电路中时变外部磁通对超导量子比特耦合的影响。我们发现,当穿过量子比特SQUID环的磁通随时间变化时,电容耦合的量子比特之间会出现非平凡的交叉电压驱动,其方式类似于法拉第电磁感应定律。关键的是,我们证明这种效应使得在标准可调耦合器架构中通过耦合器元件实现快速单量子比特控制成为可能,可能消除了对独立微波$XY$控制线的需求。

英文摘要

Crosstalk refers to unwanted qubit addressing. This is particularly detrimental when scaling up quantum information systems because unintended interactions limit their overall performance. For superconducting qubits, tunable couplings and frequency tunability achieved through externally applied magnetic fluxes enable high-fidelity entangling gates; however, they also introduce crosstalk through unintended flux coupling. In this work, we investigate the impact of time-dependent external magnetic fluxes in quantized circuits on superconducting qubit couplings. We find that non-trivial cross-voltage driving emerges between capacitively linked qubits when the magnetic flux threading the SQUID loop of a qubit varies in time, in a manner analogous to Faraday's law of induction. Crucially, we show that this effect enables fast single qubit control through the coupler element in standard tunable-coupler architectures, potentially eliminating the need for individual microwave $XY$ control lines.

2606.10955 2026-06-10 q-bio.BM cond-mat.soft q-bio.QM 新提交

A kinetic model of shear-induced rupture of short dsDNA

短双链DNA剪切诱导断裂的动力学模型

Ayman Hussein, Ralf Bundschuh

AI总结 基于力依赖的成核-拉链路径,建立主方程框架计算短双链DNA在剪切力下的解离速率和过渡态距离,揭示螺旋几何的关键作用,并统一解释不同力区的实验数据。

Comments Supporting Information is provided at the end of the main text

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AI中文摘要

短双链DNA(dsDNA)的力诱导解离是单分子生物物理学和DNA纳米技术的核心问题,但目前仍缺乏一个物理基础的动力学描述来解释有限长度结构在剪切诱导下的断裂。本文基于力依赖的成核-拉链路径(单碱基转移)建立了一个主方程框架,能够直接计算宽力范围内的解离速率和过渡态距离。将该模型应用于恒定剪切力下的DNA-金纳米颗粒-DNA结构,该模型准确再现了所覆盖力区间的室温实验数据,并为所有力区间内类似剪切双链体的先前测量提供了统一解释。一个核心结果是,dsDNA的三维螺旋几何对于在短dsDNA的棒状聚合物模型中正确定义剪切下的末端距离至关重要。我们进一步证明,在实验相关范围内,提取的过渡态距离对ssDNA聚合物参数的变化具有鲁棒性。最后,我们分析了过渡态距离的温度依赖性,并讨论了我们的框架如何捕捉全局加热的断裂,同时识别了金纳米颗粒耦合结构中局域等离子体加热引入的额外复杂性。这些结果为解释力断裂实验以及设计力和温度驱动的DNA纳米结构提供了预测性的动力学基础。

英文摘要

Force-induced dissociation of short double-stranded DNA (dsDNA) is central to single-molecule biophysics and DNA nanotechnology, yet a physically grounded kinetic description of shear-induced rupture for finite-length constructs remains lacking. Here we develop a master equation framework built on a force-dependent nucleation-zipper pathway with single-base transitions, enabling direct calculation of dissociation rates and transition state distances over a broad force range. Applied to a DNA-gold nanoparticle-DNA construct under constant shear force, the model accurately reproduces the experimental room-temperature data in the covered force regime and provides a unified interpretation of prior measurements on similarly sheared duplexes across all force regimes. A central result is that the three-dimensional helical geometry of dsDNA is essential for correctly defining the end to end distance under shear in the rod-like polymer model of short dsDNA. We further show that the extracted transition state distances are robust to variations in ssDNA polymer parameters within the experimentally relevant regime. Finally, we analyze the temperature dependence of the transition state distance and discuss how our framework captures globally-heated rupture while identifying the additional complications introduced by localized plasmonic heating in gold nanoparticle-coupled constructs. These results provide a predictive kinetic foundation for interpreting force-rupture experiments and for designing force- and temperature-actuated DNA nanostructures.

2606.10919 2026-06-10 physics.flu-dyn cond-mat.soft physics.geo-ph 新提交

Topological origin of flow distributions in disordered porous media

无序多孔介质中流动分布的拓扑起源

Jose Arnal, Guillem Sole-Mari, Tomás Aquino

AI总结 基于孔隙网络模型,研究二维无序圆形障碍物多孔介质中的稳态斯托克斯流,揭示流速分布服从伽马分布,并通过几何参数可预测,优于忽略局部相关性的平均场模型。

Comments 38 pages, 12 figures. Submitted to Journal of Fluid Mechanics

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AI中文摘要

我们研究了由二维无序圆形障碍物阵列组成的多孔介质中的稳态斯托克斯流。基于捕捉局部流动相关性的孔隙网络模型,我们发展了流速统计理论。我们表明,孔隙体集合上的流速分布服从伽马分布,而孔喉中的流速分布完全由其决定。此外,该伽马分布可直接与简单几何性质(如孔喉宽度的变异系数)相关联,使得模型可从最小介质信息参数化。所得预测与计算流体动力学模拟结果高度一致,并且比忽略局部流速相关性的先前平均场模型显示出明显更好的吻合度,阐明了局部分流与汇合如何塑造无序多孔网络中的流动。

英文摘要

We investigate steady Stokes flow through porous media composed of two-dimensional disordered arrays of circular obstacles. We develop a theory for the statistics of flow rates based on a pore-network model that captures local flow correlations. We show that the flow rate distribution across the ensemble of pore bodies follows a Gamma distribution, and that the flow rate distribution through pore throats is fully determined in terms of it. Furthermore, this Gamma distribution can be directly linked to simple geometrical properties such as the coefficient of variation of pore throat widths, rendering the model parameterisable from minimal medium information. The resulting predictions agree closely with computational fluid dynamics simulations and show markedly better agreement than prior mean-field models that neglect local flow-rate correlations, clarifying how local splitting and merging shape flow in disordered porous networks.

2606.10893 2026-06-10 eess.IV cond-mat.mtrl-sci physics.ins-det 新提交

Low-Dose 3D Bonding Mapping Through "Soft" Core-Loss EELS Tomography and Unsupervised Deep Learning

低剂量三维键合映射:通过“软”芯损失EELS层析成像与无监督深度学习

Mario Pelaez-Fernandez, Daniel del-Pozo-Bueno, Adrien Teurtrie, Serge Brosset, Maya Marinova, Phillipe Ciuciu, Marta Estrader, German Salazar-Alvarez, Francesca Peiró, Raul Arenal, Sonia Estradé, Zineb Saghi, Francisco De la Peña

AI总结 提出利用Fe-M₂,₃边缘的“软”芯损失EELS与多通道深度图像先验(DIPm-TV)实现低剂量三维化学成像,仅需9个投影即可获得高分辨率氧化态体积图,揭示FeO/Fe₃O₄核壳纳米立方体的精细结构。

Comments 50 pages, 8 figures, includes 13 pages of Supporting Information

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AI中文摘要

在扫描透射电子显微镜(STEM)中,以高空间分辨率解析束敏感纳米材料的三维化学构型仍是一个持续的前沿挑战。主要限制在于分析信号所需的高电子剂量与断层重建所需的大量投影之间的权衡。本文通过电子能量损失谱(EELS)实现了FeO/Fe$_3$O$_4$核壳纳米立方体的剂量高效三维键合映射,并具有高分辨率。我们的方法依赖于两个进展。首先,一种无标准的“软”芯损失EELS方法利用Fe-M$_{2,3}$边缘,其剂量效率比传统的Fe-L$_{2,3}$边缘高约50倍,仅将后者用作FeO和Fe$_3$O$_4$的标准来源。其次,我们引入了具有总变分正则化的多通道深度图像先验(DIPm-TV),这是一种用于光谱断层成像的无监督方法,通过在稀疏视角和低剂量条件下利用空间相关性联合重建多个通道。使用模拟数据集,从-70°到+70°范围内仅9个投影即可获得高质量重建,无需HAADF-STEM信号或对称性约束。应用于FeO/Fe$_3$O$_4$纳米立方体时,Fe-M$_{2,3}$ EELS图谱显示出改善的信噪比和空间分辨率,揭示了包裹磁铁矿壳的薄外层FeO壳。DIPm-TV产生了约1 nm各向同性分辨率的氧化态体积,保持了立方体形态,恢复了外层FeO壳,并揭示了一个小的内部空洞,这些特征无法通过传统重建方法获得。这项工作为使用浅层芯损失边缘对束敏感材料进行低剂量二维和三维分析映射建立了一条途径,在保持光谱保真度和可靠三维信息的同时,实现了数量级的剂量减少。

英文摘要

Resolving the 3D chemical configuration of beam-sensitive nanomaterials at high spatial resolution remains a persistent frontier in scanning transmission electron microscopy (STEM). The main limitation lies in the trade-off between high electron dose required for analytical signals and the large number of projections needed for tomographic reconstruction. Here, we achieve dose-efficient 3D bonding mapping of FeO/Fe$_3$O$_4$ core-shell nanocubes with high resolution via electron energy loss spectroscopy (EELS). Our approach relies on two developments. First, a standardless "soft" core-loss EELS methodology exploiting Fe-M$_{2,3}$ edges provides ${\sim}50\times$ higher dose efficiency than conventional Fe-L$_{2,3}$ edges, using the latter only as a source of FeO and Fe$_3$O$_4$ standards. Second, we introduce multi-channel deep image prior with total variation regularization (DIPm-TV), an unsupervised method for spectroscopic tomography that jointly reconstructs multiple channels by exploiting spatial correlations under sparse-view and low-dose conditions. Using simulated datasets, high-quality reconstructions are obtained from as few as nine projections over $-70^\circ$ to $+70^\circ$, without HAADF-STEM signal or symmetry constraints. Applied to FeO/Fe$_3$O$_4$ nanocubes, Fe-M$_{2,3}$ EELS maps show improved SNR and spatial resolution, revealing a thin outer FeO shell surrounding the magnetite shell. DIPm-TV yields ${\sim}1$ nm isotropic resolution oxidation-state volumes preserving cubic morphology, recovering the outer FeO shell, and revealing a small internal void, features not accessible with conventional reconstruction methods. This work establishes a pathway for low-dose 2D and 3D analytical mapping of beam-sensitive materials using shallow core-loss edges, enabling orders-of-magnitude dose reduction while maintaining spectral fidelity and reliable 3D information.

2606.10689 2026-06-10 hep-th cond-mat.mtrl-sci hep-ph nucl-th 新提交

Chiral Plasma under Strong Magnetic Fields: A Holographic Analysis of Transport Phenomena

强磁场下的手征等离子体:输运现象的全息分析

Michael Lublinsky, Hadas Tzarfati

AI总结 利用全息对偶方法,研究任意强磁场下手征等离子体的输运性质,推导出电导率和轴电流的输运系数,并重新审视负磁阻和手征磁波现象。

Comments 36 pages

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AI中文摘要

手征等离子体出现在物理学的多个领域,历史上最早起源于早期宇宙的原初等离子体,随后是在重离子碰撞中产生的夸克-胶子等离子体,最近则出现在狄拉克和外尔半金属中。该等离子体的主要特征是由于手征反常导致的轴流非守恒以及新的反常诱导输运现象的出现。本文研究了暴露于任意强恒定磁场和弱电场下的等离子体。利用全阶梯度重求和,我们写出了由十三个依赖于动量和磁场的输运系数函数参数化的电流和轴流的本构关系。后者通过一个用于真实等离子体的理论实验室计算得到,即探针极限下Schwarzschild–AdS$_5$中的全息$U(1)_V \ imes U(1)_A$ Maxwell–Chern–Simons理论。作为应用,我们重新审视了负磁阻和手征磁波现象,超越了朴素流体动力学极限。

英文摘要

Chiral plasma appears in several areas of physics, historically starting from primordial plasma in the early Universe, then in quark-gluon plasma produced in heavy ion collisions, and, more recently, in Dirac and Weyl semimetals. The major signature of the plasma is the non-conservation of the axial current due to the chiral anomaly and the emergence of new, anomaly-induced transport phenomena. In this paper, we study the plasma exposed to arbitrarily strong constant magnetic and weak electric fields. Employing all-order gradient resummation, we write down constitutive relations for electric and axial currents parameterized by thirteen momentum- and magnetic- field-dependent transport coefficient functions. The latter are computed utilizing a theoretical lab for a realistic plasma, namely a holographic $U(1)_V \times U(1)_A$ Maxwell--Chern--Simons theory in Schwarzschild--AdS$_5$, in the probe limit. As an application, we revisit the phenomena of negative magnetoresistance and chiral magnetic waves, beyond the naive hydrodynamic limit.

2606.10680 2026-06-10 hep-th cond-mat.stat-mech gr-qc 新提交

Hawking--Page Universality, Thermodynamic Dipoles and Categorical Defects

霍金-佩奇普适性、热力学偶极子与范畴缺陷

Emilio Torrente-Lujan

AI总结 利用热力学矢量场重新审视霍金-佩奇相变,发现戴维斯和霍金-佩奇点的绕数构成偶极子,归一化后得到普适比,并推广到多种黑洞及范畴缺陷。

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AI中文摘要

我们使用常见的热力学矢量场重新考虑霍金-佩奇相变,该矢量场的零点包括戴维斯点和霍金-佩奇点。在基本AdS分支中,它们的绕数分别为$w_{\rm D}=-1$和$w_{\rm HP}=+1$,因此这对零点总电荷为零但一阶符号矩非零。经过戴维斯尺度归一化后,该矩给出熟悉的普适比$C_S$和$C_T$;在四维中$C_S=2$,$C_T=2/\sqrt{3}-1$。我们检验了Schwarzschild-AdS、巨正则系综的Reissner-Nordström-AdS、任意维度的带电非旋转黑洞以及固定角速度的Kerr-AdS的构造。相同的约化几何在四维中给出势垒$B=1/3$,在一般维度中给出$B(d)=1/[(d-1)(d-3)]$。最后,我们提出了一种涉及缺陷分辨版本的表述,用于范畴或非可逆对称性扇区。

英文摘要

We reconsider the Hawking--Page transition using the common thermodynamic vector field whose zeros include the Davies and Hawking--Page points. In the elementary AdS branch their winding numbers are $w_{\rm D}=-1$ and $w_{\rm HP}=+1$, so the pair has zero total charge but a non-zero signed first moment. After normalization by the Davies scales this moment gives the familiar universal ratios $C_S$ and $C_T$; in four dimensions $C_S=2$ and $C_T=2/\sqrt{3}-1$. We check the construction for Schwarzschild--AdS, grand-canonical Reissner--Nordström--AdS, charged non-rotating black holes in arbitrary dimension, and Kerr--AdS at fixed angular velocity. The same reduced geometry gives a barrier $B=1/3$ in four dimensions and $B(d)=1/[(d-1)(d-3)]$. Finally we propose a formulation involving a defect-resolved version for categorical or non-invertible symmetry sectors.

2606.10585 2026-06-10 quant-ph cond-mat.dis-nn 新提交

Anomalous mobility edges and extended-localized transition in a quasiperiodic emitter-cavity array

准周期发射体-腔阵列中的反常迁移率边和扩展-局域转变

H. T. Cui, H. Z. Shen, M. Qin, X. X. Yi

AI总结 本文证明耗散可在准周期势调控的发射体-腔阵列中诱导反常迁移率边和扩展-局域转变,通过量子束缚态(分立或连续谱嵌入)统一解释局域化机制,并利用广义对偶变换解析确定迁移率边和临界势强度。

Comments 8+9 pages, 3+4 figures. comments are welcome

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AI中文摘要

准周期系统中通过迁移率边或局域化转变对局域化的操控具有重要的物理意义。在本文中,我们证明耗散可以在由准周期势调控的发射体-腔阵列中诱导反常迁移率边和扩展-局域转变。具体而言,我们观察到发射体的局域化性质由量子束缚态(分立或嵌入连续谱)的性质决定,这提供了一个将发射体-光子束缚物理与准周期临界性联系起来的统一机制。根据束缚态是分立型还是连续谱型,诱导的有效激发跳跃呈现指数衰减或正弦振荡,分别导致局域态或临界态的形成。通过广义对偶变换,我们解析地确定了反常迁移率边和势的临界强度,从而构建了完整的相图。研究表明,腔的物理特性对激发局域化有显著影响。因此,仅通过调节腔场即可实现对激发局域化的操控。

英文摘要

The manipulation of localization in quasiperiodic systems by mobility edges or localization transition holds significant physical importance. In this letter, we demonstrated that the dissipation can induce the emergence of anomalous mobility edges and extended-localized transition in emitter-cavity arrays controlled by quasiperiodic potentials. Specifically, we observe that the localization properties of emitters is governed by the nature of quantum bound states, either discrete or embedded in continuum, providing a unified mechanism linking the emitter-photon bound physics to quasiperiodic criticality. Depending on the bound state discrete or continuumlike, the induced effective excitation hopping exhibits either exponentially decaying or sinusoidally oscillating, giving rise to the formation of localized or critical states, respectively. Through a generalized duality transformation, we analytically determine the anomalous mobility edges and the critical strength of potential, enabling the construction of a full phase diagram. The study reveals that the physical characteristics of cavity exert a significant influence on excitation localization. Therefore, the manipulation of excitation localization can be achieved solely by adjusting the cavity fields.